Combination-lock.



srarns lilith' fn'noua meenemen serra-Le, nsw Yeas.

' communities-Loca;

To alglwliom it may. concern: f

l Beit known that I, MYnoN A; Moslima, a citizen of the' United States, residing at Buiald in the county of Erie and State oi New AYorin-have inventednew and useful Improve-ments in Combination-Locks, of

i' which-the following is a specification.

This invention relates to a combination lock which is especially desirable for locking v the gasolene supplyv'alve of an automobile .but which maybe used in connection with 'various other partsto be locked. Its object is Ethe production of a-reliable lock of this kind which shall' be'simple and durable lin construction and which can be manufactured l at relativelysma'll cost.

' In the accompanying drawings :'l Figure 1 is a front elevation of-thelock. Fig. 2 is a, horizontal section on line 2 2, Fig. 1.

Fig@ is an invertedhorizontal section showing 'the-locking bolt, its guideand its operating parts. Fig. 4; is a fragmentary transverse section on line 1-1, Fig. 2. Fig. 5 is a longitudinalsection of the bolt-operating screw. Fig. .6 isa'plan view thereof., Fig.

7 is a 'View of the rear end of saidscrewr Fig.f8 is a sectionon line 8-8., Fig., 2. Fig. 9 is a side elevation ofthe locking holt.

Similar characters of reference 'vindicate corresponding parts throughout the several In the drawings the lockis'shown. inconnectionv with a.' gasolen'e supply valve' located in the 'pip'eleading from the gasolene tank` to the carbureter of an automobile, the part to be' locked against-rotation being the rotary valve-stem 2.- The latter passes transversely through the'lock-case 3 and is pro- -Videdl on the' front-side of thecase with a crank 4L or other suitable means for turning it.v In the example illustrated in the drawings, thestem is provided within-the lockcase with a fixed collar or disk 5 having a lockingI 'aperture 6` adapted to receive a'V locking bolt 7 arranged-lengthwise of the 1 'valve stein-"This bolt slides ina suitable guide 8 carried bja-bracket? 9 secured to thel front ywall of'the-lock-case. The bolt is constantly urged-'toward thecollar 5 by a spring 10' secured'to a bracketll projecting-from a wall of the lockfcase. The free end o'i" said spring bears against a lm-or projection 12 at. the rear end of the locking bolt, as shown in Fig. 3. Thelccking bolt is withdrawn" fronrtlie apertured collar 5 by va .lever 13 pivoted `between its ends' to. the bracket l11 Spcciicationsf Lettersatent.- Pitenitt 65 lgjiei.

pplication ile Septeinner 2'?, 1h13. Serial No. 792,262.1

land adapted to engage the front side of the holt-lip 1Q.- At its opposite end said leven carries a ein is which .traverses @heg-,geneve of a rotary screw' or threaded shaft 15, 'the 'stein 15a of which extends' through the frontwall 'of .the ,ic-ckrc'ase' andhas a knob for turning it. Thefleer-.a'n carrying thepin lftinajr be pressed against the screw by a suitable spring 16,'a's shown in Figs. and 4. rrIlhi's construction insures the close engagement of the lever-pin with the' screw;

while aliasing the 1er/fer to' be pivoted with sutlicientl lresenje'ss to workv freely at all times. -Ths screw is 'suitably held against endwise ni'ovem'ent -in the case, the means shown in' the: drawings consisting of a shoulder 1T on'the screw bearing against the innerv side of the front wall of the case and ax numbered, dial 18 carried by the stem y15a' and bearing, against the louter side of' said wall. The threadoi the screw 15 trends in the 'same direction from end to-end andis provided at diifercnt points orinterva'ls with return-channels 19 through which the leverpin 14 may passfronji onewinding of the screa1 to the next-,- these channelsv being preferably oblique and trending reversely to the main groove of the screw, as shown.

Located at oneor more points in the' main channel or groove of the screw are blames, Canis ordetlectors 20 and 21 adapted to he encountered hy the. lever pin It and constructed and arranged t0 vdirect said .pin through one of the return channels intoa preceding winding of the main groove and thereby'hatle any attempt to unlock the bolt 'unless the screw is manipulated according l opening of the" collar 5 andflock-ing theraive stem 'In order to' withdraw the holt, the lere-r must he swung a sufficient distance to engage the 'bolt-lip 12 and shift the holt. Itthe screw had an ordnaryhontnuous thread and n'epbafiies, the' laire!! could obvi? f lever moving 1n the reverse direction and' vously be swung to the requisite extent by simply turning the screw forwardly without reversal, but the baffles 2O and 2l and return channels 19 require the rotation of the screw to be reversed to avoid entering said-channels andperrnit the lever to continue its unlocking movement.

assuming the bolt to be locked and the lever-pin to be in engagement with the rear portion of the screw, shown, in order to unlock the bolt, the screw must be manipulated as follows: It is first turned forwardlv which causes the lever-pin i4 to 'follow the screw threads and approach the knob or the screw, the opposite end of the approaching the lipl of the. bolt. By the continued forward rotation of the screw,

the lever-pin advances thereon until it encounters the rear cani or baffle 20 .which deliects the pin. rearwardly toward the entrance of thecompanion return channel 19, and if this forward movement of the screw were then continued, the pin would `be detlccted rearwardly through said channel. by its oblique lwalls back into the preceding turn or groove of the screw thread, thus causing the lever to recede from the lip of the locking bolt, or in other words, move in the wrong direction'to unlock the bolt. To avoid such return movement of the leverpin, the screw, after the pin has cleared the rear end of said battle and beforearriving at vthe entrance of said channel, as shown by full lines'in Fig. 6, must be rotated bachward ,a short dist-ance to bring the reverse side or". .said baffle behind the pin and deflect. 'it away from said entrance and in line with the main groove or' the screw, as shown by dotted lines in Fig. 6. Uponl now again reversing the screw or turning it forwardly,

the lever-pin is caused to advance on the screw until it encounters the neat baille 21, when the rotation of the screw must again be temporarilyreversed as above described, vthese operations being repeated for each baille until the pin has advanced tarV enough to cause! the lever to withdraw the locking bolt from the collar when the valve-stem will be unlocked. The proper extent of these forward vand reverse movements of the screwl is determined by the numbers of the dial 1S correspondingto the position of the baffles and return channels, as in ordinary Combination locks.

It will be seen from the foregoing that unless the screw is reversed again turned forward at the proper points, the lever-pin will retreat instead of advancing on the screw, thus cl'lectiv ly battling any ,attempt to throw the locking bolt without knowledge oft the proper combinz ."o insure-'thc return or the through the channels il), unless the screw properly manipulated, the wall rf which is ad Lesesaal ready change of the lockconibination, th

bmly-'iorlgion 15 of the screw is preferably in the i'orin of a cylindrical shell or axternally-threaded. sleeve more or less relatively to the dial 1S to Chango the combination of numbers necessary to throw the bolt. ln the preferred construction shown, said stein is provided at its rear end with a removable transverse retaining pin Q-l; which engages-either of a pair of intersecting grooves Q5 in the adjacent end of the screw-body, as seen in Figs.

5 and 7.

To allow the 'withdrawn bolt to resume its forward orlocking position under the pressure of the spring l0, itis onlj,7 necessary to turn the screw backward contini'lously, which movement causes the lever-pin 14 to recede to the rear end of the screw, withdrawing the 'lever from the lip l2 ot the bolt. The thread of the screw is provided at or near its rear end with a stop 25 to prevent the lever-pin from leaving the screw.

In addition to the return channels 19 cooperating with `the battles 2O and 21, the screw is provided near its front and rear ends with supplemental return. channels 26 and 27 unassociated with such baffles, these lastnamed channels allowing the lever-pin to pass back and forth from the endmost windings to the adjacent'windings of the screw and thus permitting free rotation of the screw at all times.

in sortie cases a single baille and a single return channel may be employed, if desired, but a plurality them is preferably used, as shown.

I claim as my invention:

l. The combination of' locking-means, a rot l screw and controlling said locking'. means, said screw having a return. channel connecting diiierent windings of its groove and a baille arranged in said groove adjacent to said return channel.

2. The combination. of locking means, arotary screw, and a member traversing said screw and controlling said locking means, said screw having its thread intersected by a return channel connecting adjacent windings oi'l its groove and trending in the reverse direction to the thread, and a baille arranged in said groove adjacent to said channelu i Y il, The combination of locking means, a v screw, and a member traversing said justable oircinniiercntially on its' -core or stein l5, so that it may be turned and controlling said locking means,-

v screw, and a member traversing said 4said screw having a return channel connecting ad] acent wlndings, of its groove and trending in the reverse direction to said g groove, anda'cam arranged insaid groove adjacent' to said return channel and trending substantially in the same direction as said channel. f

LLThe combination of locking means, a'

rotary screw, and a member'tr'aversing `said screw and .controllinglsaid locking nie-ans, said screw having av return-channel connecting dii'er'ent windings of its groo'veand a baiiie-extending obliquely across said groove adjacent to said channel, the vpertions of the 'screw-threads opposite 'the ends of the baille beingrecessed to `form passages for said'4 controlling member.

5. The combinationof locking means, a.

rotary'screw, and a' member traversing said screw l and controlling said locking means, thethread ofsaidscrew trending in the same direction from end to end and being interrupted at one or more points 'by return' channels trending' reversely to said thread and connecting adjacentl windings of the groove formed bythe thread, and oblique baiiies arranged in said groove adjacent to said channels.

6. The combinationvof lockmgmeans, a rotary screw, and a member traversing said screw and controlling said lockingmeans, I

.said screw having a return channel connectingV different windings of its groovel and a.l baffle arranged in said groove ladjacent to said channel, that wall of the channel nearest `the baHe stopping short of the opposite wall thereof.

l 7. The combinationl of locking means, a

rotary screw, and a member traversing saidstem vhaving va 4removable locking pin, an-

externally ,screw threaded' sleeve rotatably mounted on said steinand provided at its rear end with locking recesses adapted to receive said pin, anda lock-controlling member traversingsaid. vthreaded sleeve.v

Witnessmy hand this 23d day of July,

l AMYRON AQMOSHER.

" Witnesses: i

C. F. GEYER, E. M. GRAHAM. 

